How many Mary Hagan census records do you have?

We have 3581 US Census records for Mary Hagan, from 1900 to 1950, across 49 states and DC.

What's in a Mary Hagan census record?

You'll see Mary's age, birthplace, occupation, and relationship to the head of household — plus everyone else who lived in the same home. For 1940 and 1950 records, you can also view the original handwritten census page.

How do I use census records for family research?

Census records are a snapshot of a family every 10 years. You can follow Mary Hagan's household over time — see when children appear, when people move states, and who's living together. YourRoots connects census data with Tree Matching and AI tools so you can build out your tree faster.

Are Mary Hagan census records free?

Yes. All Mary Hagan census records on YourRoots are free to search and view — no subscription required. We built our own index from the original federal census images.

Which census years and states cover Mary Hagan?

We have Mary Hagan records from the 1900 through 1950 US Federal Census, across 49 states and DC. Use the year and state filters to narrow your results.

How do I find Mary Hagan in the census?

Start by narrowing the year and state. If you know an approximate birth year, use the age column to match — census age minus the census year gives you a birth year estimate. Household members, birthplace, and occupation help confirm you have the right person.

What is the Model Tree for Mary Hagan?

The Model Tree is YourRoots' unique feature that links a person across multiple census decades and reconstructs their likely family — parents, siblings, spouse, and children — based on household patterns. It turns isolated records into a connected family network.

Where does the census data come from?

All records originate from the US Federal Census microfilm digitized by NARA (National Archives and Records Administration). YourRoots re-indexed the original page images using modern AI, catching names and details that older transcriptions missed.

Mary Hagan — US Census Records & Model Tree

We found 3581 free census records for Mary Hagan across 6 census years (1900–1950), in 49 states and DC and 811 counties. Each record includes our Model Tree — the same person linked across decades using machine learning, with per-link confidence scores.

Mary Hagan Census Records by State & County

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Showing of 3581 records for Mary Hagan US Census, ranked by Model Tree richness

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Year	Name	Age	Location	Birthplace	Occupation	Relation
1940	Mary Hagan	25	Chatham-County, Georgia	Florida	Stenographer	Daughter
1910	Mary Hagan		Ramsey, Minnesota	Norway	—	Wife
1920	Mary Hagan		King, Washington	Finland	—	Wife
1930	Mary Hagan		Jackson, Georgia	Georgia	None	Wife
1930	Mary Hagan		Orleans, Louisiana	Louisiana	Waitress	Head
1940	Mary Hagan	62	Jefferson-County, Kentucky	Kentucky	Charwoman	Head
1920	Mary Hagan		Madison, Illinois	Canada	—	Wife
1910	Mary Hagan		Wayne, North Carolina	North Carolina	—	Daughter
1940	Mary Hagan	16	Wilson-County, North Carolina	North Carolina	—	Daughter
1910	Mary Hagan		Bristol, Massachusetts	England	Weaver	Head
1930	Mary H. Hagan		Henderson, Kentucky	Kentucky	None	Daughter
1930	Mary Hagan		Jefferson, Kentucky	Kentucky	—	Daughter
1930	Mary L Hagan		Jefferson, Kentucky	Kentucky	Bookkeeper	Daughter
1930	Mary E Hagan		Galveston, Texas	Texas	None	Daughter
1900	Mary Hagan	10	Marlboro, South Carolina	South Carolina	—	Daughter
1930	Mary E Hagan		Jefferson, Kentucky	Kentucky	Laborer	Wife
1940	Mary E. Hagan	33	Providence-County, Rhode Island	Rhode Island	—	Wife
1940	Mary Hagan	22	Cuyahoga-County, Ohio	Ohio	Secretary	Daughter
1940	Mary J. Hagan	29	Essex-County, Massachusetts	Massachusetts	Stenographer	Daughter
1920	Mary A. Hagan		Frederick, Maryland	Maryland	—	Daughter
1940	Mary Hagan	37	Chatham-County, Georgia	Georgia	—	Wife
1930	Mary Hagan		Jefferson, Kentucky	Kentucky	None	Daughter
1930	Mary Hagan		Spencer, Indiana	Indiana	None	Daughter
1910	Mary Hagan		Davidson, Tennessee	Tennessee	—	Daughter
1900	Mary E Hagan	49	Allen, Indiana	Ohio	—	Wife
1930	Mary I Hagan		Nelson, Kentucky	Kentucky	—	Wife
1920	Mary E. Hagan		Providence, Rhode Island	Rhode Island	Bench Hand	Daughter
1940	Mary J. Hagan	16	Los-Angeles-County, California	California	Filing	Daughter
1930	Mary E Hagan		Marion, Indiana	Indiana	—	Daughter
1920	Mary A Hagan		Champaign, Illinois	Canada	—	Head

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About Mary Hagan US Census Records & Model Tree

We've indexed 3581 free, proprietary US Census records for Mary Hagan across 1900–1950, covering 49 states and DC: Alabama, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming.

Each record includes our Model Tree — a longitudinal reconstruction that links the same person across census decades using machine learning (XGBoost record linkage). Every link carries a confidence score: Verified (≥0.99), Confirmed (≥0.95), or Linked (lower confidence). This tells you not just what the census says, but how reliably we've connected records across time.

Every record also shows the full household — who Mary lived with, their ages, birthplaces, and occupations. For 1940 and 1950 records, you can view the original handwritten census page from the National Archives.

How we build the Model Tree. YourRoots independently indexes US Census records from NARA microfilm and links persons across decades using XGBoost-based record linkage. Each link's confidence is a per-pair match score from the model. Household corroboration (co-residents appearing on the same census pages in multiple years) strengthens the signal. The Model Tree is not a family tree submitted by users — it's reconstructed from the census data itself.

Last updated: July 30, 2026

Frequently Asked Questions

: We have 3581 US Census records for Mary Hagan, from 1900 to 1950, across 49 states and DC.
: You'll see Mary's age, birthplace, occupation, and relationship to the head of household — plus everyone else who lived in the same home. For 1940 and 1950 records, you can also view the original handwritten census page.
: Census records are a snapshot of a family every 10 years. You can follow Mary Hagan's household over time — see when children appear, when people move states, and who's living together. YourRoots connects census data with Tree Matching and AI tools so you can build out your tree faster.
: Yes. All Mary Hagan census records on YourRoots are free to search and view — no subscription required. We built our own index from the original federal census images.
: We have Mary Hagan records from the 1900 through 1950 US Federal Census, across 49 states and DC. Use the year and state filters above to narrow your results.
: Start by narrowing the year and state. If you know an approximate birth year, use the age column to match — census age minus the census year gives you a birth year estimate. Household members, birthplace, and occupation help confirm you have the right person.
: The Model Tree is YourRoots' unique feature that links a person across multiple census decades and reconstructs their likely family — parents, siblings, spouse, and children — based on household patterns. It turns isolated records into a connected family network.
: All records originate from the US Federal Census microfilm digitized by NARA (National Archives and Records Administration). YourRoots re-indexed the original page images using modern AI, catching names and details that older transcriptions missed.

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